The Pwn2Own competition challenges security experts to exploit vulnerabilities in web browsers, and after the first day of the contest, Google Chrome is the only browser left standing.

Firefox, Safari, and Internet Explorer, on the other hand, were all handily exploited by the hackers. In fact, Safari was apparently exploited in a matter of seconds. So what makes Chrome so good? According to previous Pwn2Own champ Charlie Miller:

As for Chrome, he says that he has identified a security bug in Google's browser but has been unable to exploit it because the browser's sandboxing feature and the operating system's security measures together pose a formidable challenge.

Score one for the folks at Google. Head on over to Ars Technica for a more detailed rundown of the Pwn2Own exploits.